ab33298 staining Tbx2 in mouse heart and somatopleure tissue sections by Immunohistochemistry (frozen sections). Tissue was fixed with methanol. Samples were then blocked with 5% serum for 2 hours at 25°C followed by incubation with the primary antibody at a 1/100 dilution for 16 hours at 4°C. An undiluted Cy2®-conjugated Donkey anti-rabbit IgG was used as secondary antibody.